It’s_____ black. It’ s ____ black ruler.
Li Ming is in poor health. He should pay more attention exercise.
No matter , you must follow the school rules.
Mary is very shy. She goes out and she has few friends.
–Didn’t you take part in the charity walk?--_____________. I really learned a lot.
–Who’s the lady ________in red?--I guess she is Miss Li by what she .